Classifications

• • C—CHEMISTRY; METALLURGY
  • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
  • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
  • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
• • C—CHEMISTRY; METALLURGY
  • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
  • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
  • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
  • C09D7/40—Additives
  • C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres

Definitions

• the invention relates to a lacquer which causes objects painted therewith to be coded, according to the preamble of claim 1 and explained below EP 1950 256 ,
• packaging whose authenticity is or is supposed to be verifiable. These include, for example, bills, documents, packaging or accompanying documents of security-relevant or health-related goods, such as weapons, ammunition, pharmaceuticals, medical devices, and much more.
• counterfeits can be detected as simple and safe as possible, on the other hand preferably also further information about the product can be seen.
• An essential aspect of such security techniques is that as far as one does not know what is actually sought, these applied safety instructions should not be detectable on the product or the packaging. For this reason, noticeable markings such as holograms and the like are not so suitable despite the great certainty that they are against exact reproduction, since, of course, the plagiarized products also carry such markings, though not nearly as elaborate; so it is so that the difference is not so easy to recognize
• the invention aims to remedy this situation and to provide the security features in the paint for the products or packaging.
• the invention aims to remedy this situation and to provide a paint in which one can recognize the authenticity in a simple and reliable manner and in which moreover the possibility exists without increasing the complexity and thus the costs of production and detection be provided encrypted various other information.
• the invention achieves these goals by the features stated in the characterizing part of claim 1; in other words, in the simplest case, a group of flakes of defined shape and size and color without any logo is used, the flakes are thus stained throughout, more specifically, the surface of the flakes is uniformly colored throughout (or uncoloured uniformly) brings the same result). Under “consistently the same colored” is in the description and the Claims also a pattern, whether intentional or stochastic, understood, because it depends primarily on the presence of a group of flakes of the same shape and size.
• At least two groups of flakes of different shape and / or size are used, the quantity ratio indicating a further statement about the authenticity and, if appropriate, further information.
• Other or further embodiments provide for the use of flakes of different colors. Since in no case must something as complex as a figure, text or logo be applied to the tiny flakes, the cost of marking is extremely reduced as compared to the prior art, and recognition is thereby made even easier small and hard-to-see features need not be respected.
• the information (s) may or may not refer to the origin, date of manufacture, destination (medicines, weapons), optional equipment, distribution channels, and much more.
• the flakes themselves may have a rather matte surface, or a more reflective one, and the color, if it is not used for coding, can easily be selected to suit the desired application.
• the flakes themselves can be made, for example, from a PET film, as it has already been mentioned several times EP 1 950 256 is described, of course, is dispensed with the elaborate printing.
• the coating is made of PU, epoxy, or the like.
• PET metal vapor deposited PET films
• the (e.g.) vapor deposited aluminum layers being very thin, down to the range of fractions of microns (a few hundred nanometers).
• composite materials such as a composite of PET and aluminum, because of the higher cost and thickness rather for special purposes, but technologically quite feasible.
• Another possibility is the use of particles of sheet metal, including gold leaf, alu particles, or tin particles, depending on the application, the expert in knowledge of the invention can make his choice easily.

Landscapes

• Chemical & Material Sciences (AREA)
• Life Sciences & Earth Sciences (AREA)
• Engineering & Computer Science (AREA)
• Materials Engineering (AREA)
• Wood Science & Technology (AREA)
• Organic Chemistry (AREA)
• Paints Or Removers (AREA)

Priority Applications (1)

Applications Claiming Priority (1)

Publications (1)

Family

ID=51485515

Family Applications (1)

Country Status (1)

Citations (4)

• 2014
  • 2014-09-08 EP EP14183917.5A patent/EP2993208A1/fr not_active Withdrawn

Patent Citations (4)

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